One Oak Foundation
One Oak Foundation is a private foundation, based in Marina Del Rey, CA. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $321K in total assets. In 2025, it awarded 1 grant totaling $7K.
One Oak Foundation at a glance
In short: One Oak Foundation gave $7K across 1 grant in 2025 (avg $7K), mostly in California. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $7,000
- -53.9% vs 2024
- Grants made (2025)
- 1
- -87.5% vs 2024
- Average grant
- $7,000
- +269.0% vs 2024
- Median grant
- $7,000
- Total assets
- $321,199
- +6.1% vs 2024
- Primary geography
- California (100% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated September 2026.
Who One Oak Foundation funds
How this funder distributes its grants
Top Recipients
Top recipient in 2025
The largest 2025 recipient was Montage Health Foundation ($7K).
Grant Size Distribution
51 grants across all recorded years
The most common grant size was under $50K: 51 grants of 51 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of the 2025 grant dollars on its one itemized grant.
Cities
How One Oak Foundation gives
- Giving fell 52% from 2022 to 2025. Method
From the foundation's IRS Form 990-PF filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2025, annual grant giving ranged from $7K (2025) to $15K (2021). In 2025 it made 1 grant totaling $7K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Montage Health Foundation Monterey, CA | Donation to montage health foundation (501(c)(3) | $7,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions |
|---|---|---|---|---|---|---|
| 2025 | $321,199 | — | $16,700 | $7,000 | 1 | $7,000 |
| 2024 | $302,735 | — | $16,175 | $15,175 | 8 | — |
| 2023 | $274,460 | $7,539 | $16,100 | $15,000 | 15 | — |
| 2022 | $265,483 | $4,778 | $15,365 | $14,465 | 12 | — |
| 2021 | $300,448 | $8,350 | $17,913 | $15,450 | 15 | — |
| 2020 | $306,743 | $5,728 | $16,420 | $13,450 | 17 | — |
Leadership & Key People
Officers and directors from IRS filings
One Oak Foundation's 2025 filing lists 4 officers; none of the 4 officers listed in 2025 report compensation.
Officers on the 2025 filing
Erica Loewy
Director
On filings since 2020
1 hr/week
No compensation reported
Evan Loewy
Director
On filings since 2020
1 hr/week
No compensation reported
Peter Loewy
Director
On filings since 2020
1 hr/week
No compensation reported
Susan Loewy
Director
On filings since 2020
1 hr/week
No compensation reported
Data from IRS Form 990 filings, 2020–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about One Oak Foundation
How much does One Oak Foundation give each year?
One Oak Foundation gave $7K across 1 grant in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $15K across 8 grants.
How large is One Oak Foundation?
One Oak Foundation reported $321K in total assets on its 2025 IRS Form 990-PF.
Where does One Oak Foundation operate?
One Oak Foundation has awarded grants in California, District of Columbia, Florida, New Jersey, New York.
What is One Oak Foundation's EIN?
One Oak Foundation's EIN (Employer Identification Number) is 82-3704408. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(2)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 7, 2026)
- IRS filings on file for fiscal years 2020–2024
Explore Open Grants
Browse active grant opportunities in One Oak Foundation's focus areas in our free grants database
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